Revolving door.



B. KLEGAK.

REVOLVING DOOR.

APPLICATION FILED JULY 25, 1911.

1,055,474. PtGIltGd MaI-11,1913.

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REVOLVING DOOR.

APPLICATION FILED JULY25, 1911.

1,055,474. Patented Mar. 11, 1913.

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B.- KLECAK.

REVOLVING DUOR.

APPLICATION FILED JULY 25. 1911.

Patented Mar. 11, 1913.

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l T...Mulu1u-Hmmu BOHUMIL KLECAK, 0F NEW YORK, N.

assi,c rifronv 'ro van KANNEL aEvo'LvINe noon oomPANY, or NEW Yonx, N. 2.fonrona'r1on or-Nnw JERSEY.

specification of Letters raient.

Patented Mar. 11,1913.

Application rled July 25, 1911. Serial No. 840,455.

To all whom t may concern:

Beit known that I, BOHUMIL KLECAK, a citizen of the United States, residing at New York, borough of the Bronx, in the county of New York and State of New York, have invented certain new and useful Improvements in Revolvin Doors, of which the `following is a speci cation.

This invention relates to improvements in revolving doors, and more particularly to mechanism for locking the wings together whereby they are maintained in` proper vrelative `position with relation to the central pivot or spindle. The object of the invention is to provide a .mechanism that will permit the wings to collapse when abnormal pressure is applied to any of the wings, so that in case of emergencies, where it is desired to have a free passageway, the wings may be automatically collapsed.

A further object of the invention is to provide a construction wherein the wings,

when the ordinary operating ressure is ap' plied to them, will have a s ight yielding or cushioning movement, so that in practice, the particular wing againstwhich pressure is applied, will move slightly -be whole structure or the revolving parts thereof, will begin Ito revolve, the movement, however, being short of that required to disengage the Alocking devices, as would be desired in an emergency.

The general construction in the particu lars of mounting the wings upon the spindle is as shown and described in a patent granted to Theophilus Yan Kannel, Number836,843, dated November 27, 1906, and' the invention about to be described, as above suggested, resides more particularly inthe locking devices for the wings, and ,in view of this fact, the mechanism for mounting the doors upon the spindle will not be herein described and illustrated, further than is necessary to illustrate and explain the manner of the folding of the doors, with relation to the locking devices.

In the drawings- Figure 1 is an elevation of a revolving door structure, the parts being in normal position;` Fig. I2 is a plan ore the' in the saine sageway in either I easement. The channel is divided'quarterly view; Fig.' 3 isa plan view ofthe upper supporting disk, with the doors collapsed and folded to one side thereof, only a portion of the wings being shown; Fig. i is a broken horizontal section of two of the wings, taken through the locking devices, the wings being shown in the relation they Willv occupy when extended and locked; Fig. 5 isa vertical section of the locking device; Fig. 6 is a face View or elevation-of one side of the locking device.

Referring to the drawings, the numeral 1 designates thedoor wings, which, when in normal position occupy positions at right angles with relation to a central spindle 2 lsuitably supported at the topv and bottom of the casement, and with which the wings revolve. Rigidly secured to the lspindle, 2

near the upper end thereof', is a lsupporting disk 3, having a ,channel 4 therein. Keyed to the spindle, adjacent to the disk isa pinion 5, whose teeth mesh with toothed segments 6 carried by the set'eral wingsV 7 of the door. Each wing is provided with a spring-pressed stud 8 which runs in the channel 4, whereby, the wings are guided with yrelation to the central pivot, when the .door lis collapsed in fan emergency, or when the' wings are folded, as shown inl Fig. 3,` for the purpose of re'movin the door from the easement, or folding a lof the wings directionsoas to permit a paslrection, through the with socketsor depression 8', for the reception of the ends. of the studs, the

ositions in which the studs enter the socliet-s, representing the proper positionsl of the wmgs'when they are extended into operative position.

-At the lower end of the wings, the mechanism just' described, -is duplicated, the difference, however, beingthat the parts are inverted, so that the channel 4 would open toward t-he foundation or bottom of the easement, rather than toward the top, asin `the case of the upper structure.

The mechanism for mounting the doors need not, it is thought, be further described, since from the foregoing description, it will be seen that all olf the wings are individually movable with regard to the spindle, and the locking mechanism in which this invention resides, will now be described.

The numerals 9 and 10 designate the two main plates which are clamped together on the wings of the door, by means of screws 11 which screws eXtend through one of the plates into suitable bosses in the opposite plate.

The numeral 12 designates a sliding plate Whose outer face Works against the inner face of the plate 10. The plate 12'is provided at one side with an upwardly pro3ecting flange 13, which carries a lateral projection 1l, surrounded by one end of a spiral spring 15, Whose other end surrounds a stud 1G carried by the plate 9. The plate 9 is recessed as shown at 17, for the reception ot' a knuckle-casting 18 pivotally mounted upon a stationary pin 19. Held in the casting 1S, and partially surrounding the pin 20, is a yoke-shaped spring 21, which receives the attened end 22 of a flexible cable Surrounding the pin 19 with one end setinto the pin, and the other in a cross piece 24, is a spiral spring 25 exerting a tendency to keep the Whole knu'ckl'basting, and parts carried thereby, rocked toward the bottom of the recessl7 in the plate 9, for a purpose that will presently appear. The plate l2 is provided with an aperture 26, adapted to receive the head 27 on one end of the cable 23. rlhis aperture connects with a smaller aperture 28 in the plate 12, by a channel 29. The aperture 26 is of sutlicientsize to easily receive the head 27 of thel cable, which, when inserted, the cable may be slid along through the channel until the head comes opposite the smaller aperture 28, which aperture being smaller than the head, prevents this end of the cable from pulling out,` it being obvious that this side of the plate forms what may be regarded as the permanent fastening for the cable. llo prevent the head 27 Aof the cable from slip-v ping back toward the large recess, l preferably provide a short screw 30.

Located between the plates 9 and 10 is an internally threaded casting 3l through which passes a ,threaded stem 32 carrying on its forward end, a wheel 33 having socle ets 34 therein for the reception of the end of a pointed instrument, by which the wheel and stem may be turned. The end of the stem abuts against'a flange 35 on the plate 10, which liange in ,turn abuts against the inner Wall of the recess 17 of the plate 9, so that by turning the wheel, the threaded stem may be worked through the casting 31, thus, when the screws are loosened in the plates 9 and 10, the whole lock may be slid either in or out, as the occasion may require, for the adjustment of the cables.

theatre In operation, the wings'are' put in proper position at right angles to the spindle, and the heads 22 of the cables are inserted into the yoke-shaped springs 21, one .of which is carried by each wing. rllhe door may now be revolved with all of the wings properly locked together by the cables. In operating the door, when pressure is brought against one of the wings, under ordinary conditions, and when, of course, it will not be desired to break vthe lock between the Wings, such pressure, enough to start the door revolving will cause the particular wing upon which pressure is being applied, to yield slightly, this yielding motion being permitted by the pull upon the cable 23, which will cause the plate 12 to slide slightly upon the plate 10 and against the influence of spring l5. As soon as motion is imparted to the door, the particular wing will immediately resume normal position, and all of the cables will tighten up and remain taut, throughout the movement that follows the initial movement of starting the door. Under ordinary operating pressure, of course the lock is not intended to be broken, but in an emergency, or when it is desired to fold the doors, the heads 22 of the cable are pulled out of the yoke-shaped springs. The tension of these springs is such that they will hold the cables under ordinary pressures, but will permit the heads 22 to be pulled out if excessive pressure is exerted, for the purpose described. l

Having thus described my invention, what l claim as new is:

1. In a revolving, collapsible door, the combination with the wings thereof, of cables connecting t-he wings together, one end of each cable being fheld in fixed posit-ion to one face of each wing and the other end of each cable detachably-held to the adjacentI face ot' the opposite' wing by a spring.

actuated knuckle, whereby the ytension force of the spring is being constantly exerted to depress the cable-holding end of the knuckle, so as to maintain the cables in tautcondition. V 2. ln a revolving collapsible door, the combination with' the wings thereof, of cables connecting the wings together, one end ot each cable being vheld in fixed position to one face of each wing and the other end ot each cable detachably-h'eld to the adjacent face of the opposite wing by oppositely-disposed spring-arms carried by a pivoted knuckle, and a tension-means carried by each knuckle, the tension force of the spring being constantly exerted to hold the springarmsv in a downward direction, so as to maintain the-cables in taut condition.

3. ln ahevolvi'ng, collapsible door, the combination with the wings thereof, of plates attached to adjacent vfaces of said wings, cables connecting the wings together',

one of said plates being provided with whereby the cables' are automatically mainmeuns for holding one end of the cables in tained 1n taut condition. 1o fixed position and the other with a pivoted In testimon whereof I aiiix my signature knuckle having sprin '-arms for detachably in presence o two Witnesses.

holding the other en of the cables, and a BOHUMIL KLECAK. spring carried by said knuckle, the tension Witnesses: force of which is constantly exerted to hold CHARLES MUHLFELD,

the spring-arms in a downwardy direction, LENOBA LIMON. 

